Help me to choose firmware?

[mladja999]

Hi to all. I am from Serbia, and i am trying to downgrade my lumia from wp8.1 to wp8.0
I cant find product code of my phone so i dont know which firmware to download
On my phone box i can only find these:
nokia920.1
imei: [removed by staff]
wlan:2847aa9576b7
material:0023g07
CV AL MK RS-(Republic Serbia)
black
fcc id: pyram-821

Please help!

 

[ranjithr717]

U cant downgrade ur phone from wp8.1 to wp8 !!